We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

Here’s how I’d invest £100 a month for a second pension

It’s surprising how my investment fund could grow over time, even by allocating a modest amount of £100 a month. Here’s where I’d invest.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

With the full rate of the new State Pension currently at £175.20 a week, I reckon it’s a good idea for me to build a fund capable of providing a second income in retirement. I’d find it difficult to live on what works out at just over £9,110 a year without living a spartan lifestyle. And spartan isn’t what I had in mind for my autumn and twilight years. So, I’d aim to invest £100 a month to fix the problem.

How I’d invest £100 a month

I’d invest the money in a Stocks and Shares ISA to build a fund for my second income. And I’d choose to invest in shares and share-backed funds. This is because equities have historically outperformed all other major class of asset, such as cash savings and bonds.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

Over the long term, many sources quote the historical annualised returns from stocks in general as a high single-digit percentage. And that figure would include income received from dividends and capital appreciation from rising share prices.

To be conservative, I’d assume a base annualised return of 7%. And it’s surprising how my investment fund could grow over time. Key to the process of building wealth is for me to compound my returns by remaining invested. And by ploughing dividends and capital returns back into my investments.

I ran the figures through an online compound interest calculator. And investing £100 a month and compounding an annualised gain of 7% would give me a pot of money worth around  £264k after 40 years. That strikes me as a decent outcome for a relatively modest monthly investment.

Harvesting yield from my investment pot

And with £264k, I’d have plenty of options for generating a healthy second income. For example, I could put the entire sum in an FTSE 100 tracker fund and collect the dividend yield. Historically, the FTSE 100 has yielded in excess of 4%.

But even assuming a modest 4% yield, it would generate a second annual income worth £10,560. And that beats the State Pension. But, of course, I’d have both!

I’d aim to increase my monthly investments as the years go by to keep up with inflation and my hopefully-rising income. So, the final pot of money should be able to keep up with the State Pension as it rises in the future.

But I’d also aim to achieve returns greater than an annualised figure of 7%. Indeed, the key variables affecting the process of compounding are the length of time and the rate of return. So, I’d start as soon as possible. And I’d choose my investments carefully.

Within my Stocks and Shares ISA, I’d direct those monthly contributions into low-cost funds to begin with. For example, I’d likely begin my investing journey by spreading the money between maybe three index tracker funds following different markets. But I’d also look at investment trusts and the shares of exceptional companies.

Kevin Godbold has no position in any share mentioned. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Young female couple boarding their plane at the airport to go on holiday.
Investing Articles

Can the Rolls-Royce share price reach £15.97 by the end of August?

The Rolls-Royce share price has had a solid run in the last year. Muhammad Cheema takes a look at whether…

Read more »

Santa Clara offices of NVIDIA
Investing Articles

Up 1,200% in 5 years, here’s why Nvidia could still be a brilliant value stock

An exciting new announcement that could reshape the PC industry has just pushed Nvidia stock... well, just about nowhere really.

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

How investing £4.50 a day could set you on the way to a £1,505 monthly second income

How can UK stocks with high dividend yields help investors earn a meaningful second income from the price of a…

Read more »

Investing Articles

Up 103% with a P/E of 261 — is this FTSE 100 stock still worth buying?

One FTSE 100 stock is quietly moving higher while most investors are still looking elsewhere — is the market missing…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

The smart money thinks AI stocks look risky — but is there still a chance to buy?

According to fund managers, the AI trade is getting crowded. But they still seem to think it’s the place to…

Read more »

Man putting his card into an ATM machine while his son sits in a stroller beside him.
Investing Articles

Barclays shares are 11% below their 52-week high. Could they be a bit of a bargain to consider?

Overpriced or one of the FTSE 100’s hidden gems? James Beard takes a closer look at how the market is…

Read more »

Stack of one pound coins falling over
Investing Articles

Down 65% but yielding 6.7% – is this beaten-down UK stock now a generational bargain?

Harvey Jones says this UK stock is one of the worst FTSE 100 performers but there are sound reasons to…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

Is this FTSE stock really 46% undervalued?

Analysts reckon this FTSE stock should be worth nearly 50% more. James Beard considers why there’s so much positivity surrounding…

Read more »